xvii
SAFETY AND IMPORTANT WARNING ITEMS
SAFETY CIRCUITS
This machine is provided with the following safety
circuits to prevent machine faults from resulting in
serious accidents.
[1] Overall protection circuit
[2] L2, L3, and L4 (fixing heater lamps) overheating
prevention circuit
These safety circuits are described below to provide
the service engineer with a renewed awareness of
them in order to prevent servicing errors that may impair
their functions.
[1] Overall Protection Circuit
1.
Protection by CBR1 (circuit breaker 1)
The CBR1 interrupts the AC line instantaneously
when an excessive current flows due to a short
in the AC line.
Caution: The CBR1 function must not be
deactivated under any circu-
mstances.
NF
NF2
CBR1
[2] Protection by L2, L3, and L4 (fixing
heaters) overheating prevention
circuit
1.
Protection by software
The output voltage from TH1 (fixing temperature
sensor 1) is read by the CPU. If this voltage is
abnormal, L2 (fixing heater lamp 1), L3 (fixing
heater lamp 2), and L4 (fixing heater lamp 3),
and RL1 (main relay) are turned OFF.
Caution: Do not change the gap between
the roller and TH1. When repl-
acing TH1, check the specified
mounting dimensions.
The RL1 function must not be
deactivated under any circum-
stances.
RL1
L3
RL1
ACDB
CB
L4
L2
AC driver
section
RL driver
section
TS1
CBR2 *1
TS2
Control
section
TH3
TH2
TH4
TH1
*1: 7075 only
Содержание 7075/FORCE 75
Страница 1: ...FEBRUARY 2003 CSM 7075 F75 7085 F85 SERVICE MANUAL MODELS 7075 FORCE 75 7085 FORCE 85...
Страница 2: ......
Страница 3: ...7075 FORCE 75 7085 FORCE 85 SERVICE MANUAL FEBRUARY 2003...
Страница 39: ...OUTLINE 1...
Страница 40: ...Blank page...
Страница 55: ...1 15 MAIN BODY 11 Paper Exit Drive Section FRONT Paper exit roller Paper exit motor M10...
Страница 56: ...1 16 MAIN BODY 12 Toner Supply Drive Toner supply motor 1 M11 FRONT Toner supply motor 2 M15 Toner cartridge...
Страница 58: ...1 18 MAIN BODY 14 Web Drive Section FRONT Web drive motor M16 Cleaning web...
Страница 59: ...UNIT EXPLANATION 2...
Страница 60: ...Blank page...
Страница 62: ...2 A 2 EXTERNAL SECTION Blank page...
Страница 120: ...2 K 6 TRAY 3 PAPER FEED UNIT Blank page...
Страница 126: ...2 L 6 BY PASS TRAY Blank page...
Страница 130: ...2 M 4 VERTICAL PAPER CONVEYANCE SECTION Blank page...
Страница 154: ...2 O 8 FIXING UNIT Blank page...
Страница 165: ...DISASSEMBLY ASSEMBLY 3...
Страница 216: ...3 H 4 TONER SUPPLY UNIT Blank page...
Страница 224: ...3 I 8 CLEANING TONER RECYCLE UNIT Blank page...
Страница 232: ...3 J 8 PAPER FEED UNITS OF TRAYS 1 AND 2 Blank page...
Страница 240: ...3 K 8 TRAY 3 PAPER FEED UNIT Blank page...
Страница 292: ...3 O 18 FIXING UNIT Blank page 3 O 16...
Страница 293: ...MODELS 7075 FORCE 75 7085 FORCE 85 SERVICE SECTION FEBRUARY 2003...
Страница 294: ......
Страница 315: ...ADJUSTMENT 1...
Страница 316: ......
Страница 343: ...1 19 25 ADJUSTMENT Blank page 1 19 2...
Страница 372: ...1 44 25 ADJUSTMENT 1 ADJUSTMENT Blank page...
Страница 458: ...1 114 OTHER ADJUSTMENT Blank page 1 112 2...
Страница 497: ...ISW 2...
Страница 498: ......
Страница 511: ...SERVICE 3...
Страница 512: ......
Страница 514: ...Blank page...
Страница 550: ...3 18 SERVICE Blank page...
Страница 551: ...ELECTRICAL PARTS LIST WIRING DIAGRAMS 4...
Страница 552: ......
Страница 610: ...4 40 Blank page METHOD ADDITION MODEL 7075 7085 MANUAL SERVICE HANDBOOK REVISED EDITION 3 DATE Jan 2002 PAGE 4 34 6...
Страница 611: ...JAM ERROR CODE LIST 5...
Страница 612: ......
Страница 625: ...5 13 JAM CODE LIST Blank page 5 11 2...
Страница 659: ...TIMING CHARTS 6...
Страница 660: ......
Страница 678: ...6 18 TIMING CHARTS Blank page...
Страница 679: ...INSTALLATION INSTRUCTIONS 7...
Страница 680: ......
Страница 692: ...Blank page...
Страница 704: ...Blank page...
Страница 724: ...Blank page...
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Страница 832: ...Blank page...
Страница 833: ...APPENDIX 7085 OVERALL WIRING DIAGRAM...
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